src/org/bs/servlet/backend/ChannelServlet.java

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package org.bs.servlet.backend;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.bs.model.Channel;
import org.bs.service.ChannelService;
import org.bs.utils.JDBCHandler;
import org.bs.utils.PageContext;
import org.bs.utils.PropertiesBeanFactory;
import org.bs.utils.ResultUtils;



public class ChannelServlet extends BaseServlet {
//	private ChannelService channelService = new PropertiesBeanFactory<ChannelService>().getBean("ChannelService");
	private ChannelService channelService ;
	@Override
	public void addInput(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		super.addInput(request, response);
	}
	
	@Override
	public void add(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		Channel channel = ResultUtils.copyParams(Channel.class, request);
		channelService.add(channel);
		request.getRequestDispatcher("ChannelServlet?method=list").forward(request, response);
	}

	@Override
	public void delete(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		int id = Integer.parseInt(request.getParameter("id"));
		channelService.delete(channelService.findById(id));
		request.getRequestDispatcher("ChannelServlet?method=list").forward(request, response);
	}
	public void deleteBetch(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String[] channelIds = request.getParameterValues("channelCheckbox");
		for (int i = 0; i < channelIds.length; i++) {
			channelService.delete(channelService.findById(Integer.parseInt(channelIds[i])));
		}
		request.getRequestDispatcher("ChannelServlet?method=list").forward(request, response);
	}

	@Override
	public void modify(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		int id = Integer.parseInt(request.getParameter("id"));
		request.setAttribute("channel", channelService.findById(id));
		request.getRequestDispatcher("/backend/channel/update_channel_input.jsp").forward(request, response);
	}

	@Override
	public void update(HttpServletRequest request, HttpServletResponse response)